$126+ Cheap flights from LaGuardia, NY (LGA) to Ontario (ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — ONT
Mar 11 — Mar 181
1 adult, Economy
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Cheapest flights from LaGuardia to OntarioExplore the most affordable flight options available from LaGuardia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 9, 2026.
Explore the most affordable flight options available from LaGuardia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:55 pm
LGA
- ONT
2 stops28h 00m
Frontier
Tue 4/288:15 am
ONT
- LGA
1 stop10h 45m
Frontier
Deal found 2/6![Frontier logo]()
$232
This Trip.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:55 pm
LGA
- ONT
1 stop24h 44m
Frontier
Tue 4/218:15 am
ONT
- LGA
1 stop10h 45m
Frontier
Deal found 2/7![Frontier logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:00 pm
LGA
- ONT
2 stops26h 34m
Frontier
Tue 3/104:00 pm
ONT
- LGA
1 stop26h 05m
Frontier
Deal found 2/8![Frontier logo]()
$238
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:30 pm
LGA
- ONT
1 stop8h 15m
Southwest
Tue 3/109:20 am
ONT
- LGA
1 stop8h 40m
Southwest
Deal found 2/8![Southwest logo]()
$251
This Southwest deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/124:55 pm
LGA
- ONT
1 stop8h 50m
Southwest
Tue 3/171:40 pm
ONT
- LGA
1 stop6h 45m
Southwest
Deal found 2/7![Southwest logo]()
$254
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:00 pm
LGA
- ONT
2 stops10h 09m
American Airlines
Tue 3/311:58 pm
ONT
- LGA
1 stop9h 26m
American Airlines
Deal found 2/8![American Airlines logo]()
$256
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:35 am
LGA
- ONT
1 stop8h 32m
Delta
Thu 3/1212:57 pm
ONT
- LGA
1 stop7h 45m
Delta
Deal found 2/6![Delta logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/910:00 pm
LGA
- ONT
2 stops18h 28m
Multiple Airlines
Mon 3/164:22 pm
ONT
- LGA
1 stop28h 17m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$260
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:00 pm
LGA
- ONT
2 stops10h 49m
Delta
Thu 3/1212:57 pm
ONT
- LGA
1 stop7h 45m
Delta
Deal found 2/6![Delta logo]()
$262
This Southwest deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:05 am
LGA
- ONT
1 stop10h 55m
Southwest
Fri 4/35:00 am
ONT
- LGA
1 stop9h 45m
Southwest
Deal found 2/7![Southwest logo]()
$265
Best flights from LaGuardia to OntarioDiscover carefully curated flight deals from LaGuardia to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 9, 2026.
Discover carefully curated flight deals from LaGuardia to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 9, 2026.
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:00 am
LGA
- ONT
1 stop8h 47m
Delta
Tue 3/1710:25 pm
ONT
- LGA
1 stop7h 15m
Delta
Deal found 2/7![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/124:55 pm
LGA
- ONT
1 stop8h 50m
Southwest
Mon 3/161:10 pm
ONT
- LGA
1 stop7h 15m
Southwest
Deal found 2/8![Southwest logo]()
$267
This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/93:20 pm
LGA
- ONT
1 stop9h 58m
United Airlines
Mon 3/1611:59 pm
ONT
- LGA
1 stop8h 10m
United Airlines
Deal found 2/8![United Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:35 am
LGA
- ONT
1 stop8h 32m
Delta
Tue 3/1012:57 pm
ONT
- LGA
1 stop7h 45m
Delta
Deal found 2/6![Delta logo]()
$257
This United Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:00 pm
LGA
- ONT
1 stop10h 59m
United Airlines
Sat 2/281:45 pm
ONT
- LGA
1 stop6h 45m
United Airlines
Deal found 2/6![United Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/288:00 am
LGA
- ONT
1 stop10h 45m
Southwest
Fri 3/61:10 pm
ONT
- LGA
1 stop7h 15m
Southwest
Deal found 2/8![Southwest logo]()
$270
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/181:50 pm
LGA
- ONT
2 stops13h 01m
Delta
Tue 3/2410:25 pm
ONT
- LGA
2 stops14h 21m
Delta
Deal found 2/8![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:00 am
LGA
- ONT
1 stop8h 47m
Delta
Mon 3/1610:25 pm
ONT
- LGA
1 stop7h 15m
Delta
Deal found 2/8![Delta logo]()
$267
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/272:59 pm
LGA
- ONT
1 stop9h 06m
Delta
Fri 3/61:15 pm
ONT
- LGA
1 stop7h 27m
Delta
Deal found 2/8![Delta logo]()
$270
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/234:00 pm
LGA
- ONT
1 stop8h 05m
Delta
Wed 3/41:15 pm
ONT
- LGA
1 stop7h 27m
Delta
Deal found 2/8![Delta logo]()
$270
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/93:00 pm
LGA
- ONT
1 stop9h 00m
Delta
Mon 3/1610:25 pm
ONT
- LGA
2 stops10h 38m
Delta
Deal found 2/8![Delta logo]()
$272
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/128:15 am
LGA
- ONT
2 stops11h 13m
Delta
Mon 3/1610:25 pm
ONT
- LGA
1 stop7h 15m
Delta
Deal found 2/8![Delta logo]()
$272
Last-minute flights from LaGuardia to OntarioDiscover last-minute flight deals from LaGuardia to Ontario. Data last updated February 9, 2026 and is based on user searches.
Discover last-minute flight deals from LaGuardia to Ontario. Data last updated February 9, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:07 pm
LGA
- ONT
1 stop8h 42m
American Airlines
Tue 3/311:58 pm
ONT
- LGA
1 stop7h 32m
American Airlines
Deal found 2/8![American Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/234:00 pm
LGA
- ONT
1 stop8h 05m
Delta
Wed 3/41:15 pm
ONT
- LGA
1 stop7h 27m
Delta
Deal found 2/8![Delta logo]()
$270
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:35 am
LGA
- ONT
1 stop8h 32m
Delta
Thu 3/1212:57 pm
ONT
- LGA
1 stop7h 45m
Delta
Deal found 2/6![Delta logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:00 pm
LGA
- ONT
2 stops26h 34m
Frontier
Tue 3/104:00 pm
ONT
- LGA
1 stop26h 05m
Frontier
Deal found 2/8![Frontier logo]()
$238
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:30 pm
LGA
- ONT
1 stop8h 15m
Southwest
Tue 3/109:20 am
ONT
- LGA
1 stop8h 40m
Southwest
Deal found 2/8![Southwest logo]()
$251
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/312:00 pm
LGA
- ONT
2 stops10h 09m
American Airlines
Tue 3/311:58 pm
ONT
- LGA
1 stop9h 26m
American Airlines
Deal found 2/8![American Airlines logo]()
$256
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:00 am
LGA
- ONT
2 stops13h 05m
Southwest
Tue 3/39:00 pm
ONT
- LGA
2 stops9h 10m
Southwest
Deal found 2/8![Southwest logo]()
$261
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/32:00 pm
LGA
- ONT
2 stops12h 49m
Delta
Wed 3/1110:25 pm
ONT
- LGA
1 stop7h 15m
Delta
Deal found 2/6![Delta logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/910:00 pm
LGA
- ONT
2 stops18h 28m
Multiple Airlines
Mon 3/164:22 pm
ONT
- LGA
1 stop28h 17m
Multiple Airlines
Deal found 2/7![Multiple Airlines logo]()
$260
This Southwest deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/124:55 pm
LGA
- ONT
1 stop8h 50m
Southwest
Tue 3/171:40 pm
ONT
- LGA
1 stop6h 45m
Southwest
Deal found 2/7![Southwest logo]()
$254
This Southwest deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/124:55 pm
LGA
- ONT
1 stop8h 50m
Southwest
Mon 3/161:10 pm
ONT
- LGA
1 stop7h 15m
Southwest
Deal found 2/8![Southwest logo]()
$267
This Southwest deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/316:05 am
LGA
- ONT
1 stop10h 55m
Southwest
Fri 4/35:00 am
ONT
- LGA
1 stop9h 45m
Southwest
Deal found 2/7![Southwest logo]()
$265
One-way flights from LaGuardia to OntarioSearch for one-way flight options from LaGuardia to Ontario. Find affordable one-way fares based on user searches. Data last updated February 9, 2026.
Search for one-way flight options from LaGuardia to Ontario. Find affordable one-way fares based on user searches. Data last updated February 9, 2026.
This American Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:30 pm
LGA
- ONT
1 stop8h 07m
American Airlines
Deal found 2/8![American Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/28:45 pm
LGA
- ONT
2 stops27h 49m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$127
This Trip.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/216:00 am
LGA
- ONT
2 stops20h 59m
Frontier
Deal found 2/6![Frontier logo]()
$129
This Delta deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:00 pm
LGA
- ONT
1 stop8h 05m
Delta
Deal found 2/7![Delta logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/186:20 am
LGA
- ONT
2 stops20h 39m
Frontier
Deal found 2/7![Frontier logo]()
$133
This Trip.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:59 pm
LGA
- ONT
1 stop22h 24m
Multiple Airlines
Deal found 2/6![Multiple Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2510:55 pm
LGA
- ONT
2 stops36h 09m
Frontier
Deal found 2/6![Frontier logo]()
$136
This Trip.com deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:00 pm
LGA
- ONT
1 stop21h 15m
Frontier
Deal found 2/7![Frontier logo]()
$138
This American Airlines deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/273:15 pm
LGA
- ONT
1 stop9h 09m
American Airlines
Deal found 2/6![American Airlines logo]()
$139
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:00 am
LGA
- ONT
1 stop8h 47m
Delta
Deal found 2/6![Delta logo]()
$140
This Delta deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:00 pm
LGA
- ONT
1 stop8h 05m
Delta
Deal found 2/8![Delta logo]()
$142
This Delta deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/191:50 pm
LGA
- ONT
2 stops13h 01m
Delta
Deal found 2/6![Delta logo]()
$144
Find flight deals from LaGuardia to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from LaGuardia (LGA) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $232 (Kiwi.com) |
One-way from | $126 (American Airlines) |
Popular in | December |
Cheapest in | October |
Average price | $569 |
Cheapflights Fare Finder
Customize your flight search to find flights from LaGuardia to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 9, 2026.
Use the filters below to find and compare flights from New York LaGuardia Airport to Ontario that are best for you.
Fly from
LaGuardia
Fly to
Ontario
Route
Depart
Return
Price
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Tue 3/10
6:00 am-11:47 am
1 stop8h 47m
Ontario
Tue 3/17
10:25 pm-8:40 am
1 stop7h 15m
$257
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Sat 2/28
6:35 am-12:07 pm
1 stop8h 32m
Ontario
Tue 3/10
12:57 pm-11:42 pm
1 stop7h 45m
$257
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Thu 3/12
4:55 pm-10:45 pm
1 stop8h 50m
Ontario
Mon 3/16
1:10 pm-11:25 pm
1 stop7h 15m
$267
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Mon 3/9
3:20 pm-10:18 pm
1 stop9h 58m
Ontario
Mon 3/16
11:59 pm-11:09 am
1 stop8h 10m
$267
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Wed 3/18
1:50 pm-11:51 pm
2 stops13h 01m
Ontario
Tue 3/24
10:25 pm-3:46 pm
2 stops14h 21m
$267
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Wed 3/11
6:00 am-11:47 am
1 stop8h 47m
Ontario
Mon 3/16
10:25 pm-8:40 am
1 stop7h 15m
$267
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Wed 2/25
2:00 pm-9:59 pm
1 stop10h 59m
Ontario
Sat 2/28
1:45 pm-11:30 pm
1 stop6h 45m
$270
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Sat 2/28
8:00 am-3:45 pm
1 stop10h 45m
Ontario
Fri 3/6
1:10 pm-11:25 pm
1 stop7h 15m
$270
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Fri 2/27
2:59 pm-9:05 pm
1 stop9h 06m
Ontario
Fri 3/6
1:15 pm-11:42 pm
1 stop7h 27m
$270
New YorkOntario
LGA - ONT
LGAONT
New York LaGuardia
Mon 2/23
4:00 pm-9:05 pm
1 stop8h 05m
Ontario
Wed 3/4
1:15 pm-11:42 pm
1 stop7h 27m
$270
Showing 1-10 of 23 results
Compare providers for flights from LaGuardia to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from LaGuardia to Ontario in February.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on New York LaGuardia Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on New York LaGuardia Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from New York LaGuardia Airport-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on New York LaGuardia Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for New York LaGuardia Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from LaGuardia to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from LaGuardia with our price prediction graph.
LGA-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from New York LaGuardia Airport to Ontario
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated February 9, 2026.
See what other customers who have flown with Southwest, Delta, and American Airlines from New York LaGuardia Airport to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Related info for your journey
Find useful and relevant information for your journey from LaGuardia to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from LaGuardia to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 9, 2026.
LaGuardia and Ontario flights
Browse other LaGuardia and Ontario flight options. Last updated on February 9, 2026.
Other flights from LaGuardia
Browse through other flights departing from LaGuardia. Flights are based on user searches made on Cheapflights and were last updated on February 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from LaGuardia to Ontario
Discover the top 4 airlines that operate flights from LaGuardia to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$159 | Average$314 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$192 | Average$501 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$192 | Average$396 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$270 | Average$477 | FlexibilityNo cancel fee | On-timeN/A |